Improvement in flour-bolts



Hour-Baits.

No. 134,354. Patented Dec. 31', 1872.

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JOHN BROWN, OF NOE-TH BUFFALO, NEW YORK.

Specification forming part of Letters Patent No. li lh td dated December31, 1872.

1V attire of the Intention.

The invention relates to separators or bolts for flour-mills; and theinvention consists in forming the reel of a series of hoops or ringswhich can be adjusted when desired to cause them to assume a circularform, thereby doing away with the usual longitudinal ribs, by whichmeans the bolting-cloth or wire-cloth may be kept in a perfect or truecircle. It also consists in a revolving and adjustable brush, wherebythe cloth is prevented from clogging, as hereinafter fully explained.

In the drawing, Figure 1 is a sectional side elevation. Fig. 2 is an endview, showing the adjustable hanger. Figs. 3 and 4t are enlarged viewsof the expanding-hoops.

A represents a frame in which a shaft, 13, of the reel works. 0 O arethe hoops or rings surrounding this shaft, and connected there with byarms or spokes a a. The lower ends of these arms are provided withscrew-threads which set into the shaft B or into nuts secured thereto.The other ends of the spokes have a square head or nut, b, attached at ashort dis tancefrom the ring, forming shoulders which support the rings0, as shown in Figs. Sand 4:. By these means the hoops or rings can beadjusted so as to cause the reel to assume a circular form at pleasure.This is an important part of my invention, as the bolting-cloth may thusbe always kept in a perfect circle and present an even surface to thebrush, ant should the shaft not' be perfectly true the hoops m a y be soadjusted by the screw-arms as tomake the outer periphery of the clothtrue. It also enables me to do away with the usual longitudinal slats orribs,"inaking the reel much lighter, and also gives more cloth surfacethan when ribs are used, and by the circular shape the action is muchmore even and regular as well as speedy. Immediately above thebolting-cylinder I arrange a circular revolving brush, D, formed on ashaft, E, setting in oblong slots h h in the frame-work and suspended bymeans of hangers c c. This brushis made adjustable nearer to or furtherfrom. the bolting-cylinder by means of rods cl d and slots h h, and isrevolved by pulleys of and a belt, 9, or their equivalents.

This brush is Very important in keeping the bolting-cloth clean andremoving all the bran and flour that would otherwise clog the meshes.Heretofore brushes could not be applied because the reels were notperfect circles, and the operation of the brushes upon the surface ofthe bolting-cloth was prevented by the projection of the ribs or slatsof the reel.

Another advantage is that wire-cloth, if de sired, may be used insteadof bolting-cloth in connection with the brush, whereby a great savingmay be made, as bolting-cloth wears quickly and is expensive. Ifpreferred, a reciprocat ry instead of a rotary movement may be given tothe brush.

The hoops or rings may be made of heavy wire, light rods, or of wood,and thus obtain a very light frame for the reel.

This separator can be used for bolting. coolin g, or separating, and thewhole device will be found to be equally well adapted for farina,corn-meal, 85c.

Claims.

1. In a flour belt or separator, I claim the bolting-cloth supporteddirectly upon a series of independent and disconnected rings, 0 0, eachof said rings being contiguous to, and adjust-ably supported upon thereel-shaft, by the arms a a, as set forth, whereby said bolting-clothcan be made to present a circular form to the action of the material tobe bolted, as herein shown and described.

2. 1 claim the combination of an adjustable rotating circular brush withthe bolting-cloth and reel of a flour bolt or separator, substantiallyasand for the purpose specified.

3. I claim the arrangement of the brush D on shaft E, setting in slots hIt suspended by hangers c c, and adjusted closer to or further from theboltiugcylinder by the rods 61 d or their equivalents, as and for thepurpose hereinbefore specified.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

JOHN BROWN.

Witnesses:

J. R. DRAKE, Y O. N. WooDw/inn.

